A cross pein hammer has a wedge shape at one end. It is used by metalworkers when they are forging. They use this type of hammer to make the metal stretch
Is there a separate path for the penis to make a baby? It depends on which side you're talking about, the male or the female. The sperm exits the penis through the same passage as urine. If you mean...
The ball-peen is useful for shaping metal. The ball end of the head is for stretching sheet metal. As you strike the metal it thins it causing it to form a dent. A collection of dents, properly...